http://www.cnr.it/ontology/cnr/individuo/prodotto/ID237238
Characterization of erbium- or iron-doped lithium niobate crystals and waveguides (Abstract/Poster in convegno)
- Type
- Label
- Characterization of erbium- or iron-doped lithium niobate crystals and waveguides (Abstract/Poster in convegno) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Alternative label
S. Sebastiani, M. Brenci, A. Chiasera, M. Ferrari, M. Mattarelli, G. Nunzi Conti, S. Pelli, and G.C. Righini (2005)
Characterization of erbium- or iron-doped lithium niobate crystals and waveguides
in 20th Congress of the International Commission for Optics Challenging Optics in Science & Technology, Changchun, China, August 21-26, 2005
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S. Sebastiani, M. Brenci, A. Chiasera, M. Ferrari, M. Mattarelli, G. Nunzi Conti, S. Pelli, and G.C. Righini (literal)
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- S. Sebastiani a, M. Brenci a, A. Chiasera b, M. Ferrari b, M. Matterelli c, G. Nunzi Conti a, S. Pelli a,
and G.C. Righini a
a Nello Carrara Applied Physics Institute (IFAC CNR), 50127 Firenze, Italy
b Institute of Photonics and Nanotechnology (IFN CNR), Trento Section, Italy
c Physics Department, University of Trento, Italy (literal)
- Titolo
- Characterization of erbium- or iron-doped lithium niobate crystals and waveguides (literal)
- Abstract
- Lithium niobate is one of the most popular materials for integrated optics, mainly due to its electrooptical
and nonlinear properties. In the recent years there has been an increasing interest for massive
or local doping of lithium niobate in order to extend its functionality. Integrated optical lasers and
amplifiers were made possible by doping with rare earths (e.g. with Nd and Er) or with chromium.
Diffractive components produced by direct writing were demonstrated in iron-doped niobate.
Combining these properties, higher component integration may be achieved; this, of course, is
imposing increasingly demanding conditions to the materials and fabrication techniques. Here we
present the optical and spectroscopic characterization of optical waveguides produced by Titanium
indiffusion in erbium-doped experimentally grown and commercial lithium niobate crystals; both
planar and channel waveguides were fabricated. Absorption, photoluminescence and Raman
spectroscopies were used, considering also different crystals cuts; a comparison between
spectroscopic properties in the bulk and in the waveguide was performed. All the spectra were
obtained by using the 514.5 nm line of an Argon laser as excitation source. The power of the laser
focused on the sample was measured to be of around 170 mW in the case of the Z-cut bulk and 280
mW for the X-cut sample (bulk crystal and waveguide). Commercial iron-doped niobate crystals
were studied as well, and feasibility of laser writing of optical structures was assessed. (literal)
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